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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 77.23
edited by Xiaoling
on 2022/06/10 08:41
Change comment: There is no comment for this version
To version 68.14
edited by Xiaoling
on 2022/05/25 15:16
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -11,15 +11,12 @@
11 11  
12 12  
13 13  
14 -
15 -
16 -
17 17  = 1.Introduction =
18 18  
19 19  == 1.1 What is LT Series I/O Controller ==
20 20  
21 21  (((
22 -The Dragino (% style="color:blue" %)**LT series I/O Modules**(%%) are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as:** (% style="color:blue" %)analog current Input, analog voltage input(%%)**(% style="color:blue" %), **relay output**, **digital input**(%%) and (% style="color:blue" %)**digital output**(%%) etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
19 +The Dragino LT series I/O Modules are Long Range LoRaWAN I/O Controller. It contains different I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and digital output etc. The LT I/O Modules are designed to simplify the installation of I/O monitoring.
23 23  )))
24 24  
25 25  (((
... ... @@ -27,7 +27,7 @@
27 27  )))
28 28  
29 29  (((
30 -The LT I/O Controllers is aiming to provide an (% style="color:blue" %)**easy and low cost installation** (%%)by using LoRa wireless technology.
27 +The LT I/O Controllers is aiming to provide a simple plug and play, low cost installation by using LoRaWAN wireless technology.
31 31  )))
32 32  
33 33  (((
... ... @@ -44,15 +44,11 @@
44 44  
45 45  (((
46 46  [[image:1653295757274-912.png]]
47 -
48 -
49 49  )))
50 50  
51 51  == 1.2  Specifications ==
52 52  
53 53  (((
54 -
55 -
56 56  **Hardware System:**
57 57  )))
58 58  
... ... @@ -75,7 +75,6 @@
75 75  )))
76 76  )))
77 77  
78 -
79 79  (((
80 80  **Interface for Model: LT22222-L:**
81 81  )))
... ... @@ -99,7 +99,6 @@
99 99  Power Input 7~~ 24V DC. 
100 100  )))
101 101  
102 -
103 103  (((
104 104  **LoRa Spec:**
105 105  )))
... ... @@ -160,12 +160,8 @@
160 160  )))
161 161  * (((
162 162  Packet engine up to 256 bytes with CRC.
163 -
164 -
165 165  )))
166 166  
167 -
168 -
169 169  == 1.3 Features ==
170 170  
171 171  * LoRaWAN Class A & Class C protocol
... ... @@ -176,8 +176,6 @@
176 176  * Firmware upgradable via program port
177 177  * Counting
178 178  
179 -
180 -
181 181  == 1.4  Applications ==
182 182  
183 183  * Smart Buildings & Home Automation
... ... @@ -187,8 +187,6 @@
187 187  * Smart Cities
188 188  * Smart Factory
189 189  
190 -
191 -
192 192  == 1.5 Hardware Variants ==
193 193  
194 194  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -202,8 +202,6 @@
202 202  * 1 x Counting Port
203 203  )))
204 204  
205 -
206 -
207 207  = 2. Power ON Device =
208 208  
209 209  The LT controller can be powered by 7 ~~ 24V DC power source. Connect VIN to Power Input V+ and GND to power input V- to power the LT controller.
... ... @@ -214,8 +214,6 @@
214 214  
215 215  [[image:1653297104069-180.png]]
216 216  
217 -
218 -
219 219  = 3. Operation Mode =
220 220  
221 221  == 3.1 How it works? ==
... ... @@ -226,12 +226,8 @@
226 226  
227 227  (((
228 228  In case user can’t set the OTAA keys in the network server and has to use the existing keys from server. User can [[use AT Command>>||anchor="H4.UseATCommand"]] to set the keys in the devices.
229 -
230 -
231 231  )))
232 232  
233 -
234 -
235 235  == 3.2 Example to join LoRaWAN network ==
236 236  
237 237  (((
... ... @@ -260,12 +260,10 @@
260 260  
261 261  [[image:1653297955910-247.png||height="321" width="716"]]
262 262  
263 -
264 264  Add APP KEY and DEV EUI
265 265  
266 266  [[image:1653298023685-319.png]]
267 267  
268 -
269 269  (((
270 270  **Step 2**: Power on LT and it will auto join to the TTN network. After join success, it will start to upload message to TTN and user can see in the panel.
271 271  )))
... ... @@ -272,8 +272,6 @@
272 272  
273 273  [[image:1653298044601-602.png||height="405" width="709"]]
274 274  
275 -
276 -
277 277  == 3.3 Uplink Payload ==
278 278  
279 279  There are five working modes + one interrupt mode on LT for different type application:
... ... @@ -285,8 +285,6 @@
285 285  * **MOD5**: Single DI Counting + 2 x AVI + 1 x ACI + DO + RO
286 286  * **ADDMOD6**: Trigger Mode, Optional, used together with MOD1 ~~ MOD5
287 287  
288 -
289 -
290 290  === 3.3.1 AT+MOD~=1, 2ACI+2AVI ===
291 291  
292 292  The uplink payload includes totally 9 bytes. Uplink packets use FPORT=2 and every 10 minutes send one uplink by default.
... ... @@ -322,7 +322,6 @@
322 322  * [1] RO1 relay channel is close and the RO1 LED is ON.
323 323  * [0] RO2 relay channel is open and RO2 LED is OFF;
324 324  
325 -
326 326  **LT22222-L:**
327 327  
328 328  * [1] DI2 channel is high input and DI2 LED is ON;
... ... @@ -338,8 +338,6 @@
338 338  ** DO1 is high in case there is load between DO1 and V+.
339 339  ** DO1 LED is off in both case
340 340  
341 -
342 -
343 343  === 3.3.2 AT+MOD~=2, (Double DI Counting) ===
344 344  
345 345  **For LT-22222-L**: this mode the **DI1 and DI2** are used as counting pins.
... ... @@ -432,8 +432,6 @@
432 432  )))
433 433  )))
434 434  
435 -
436 -
437 437  === 3.3.3 AT+MOD~=3, Single DI Counting + 2 x ACI ===
438 438  
439 439  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -474,12 +474,8 @@
474 474  
475 475  (((
476 476  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
477 -
478 -
479 479  )))
480 480  
481 -
482 -
483 483  === 3.3.4 AT+MOD~=4, Single DI Counting + 1 x Voltage Counting ===
484 484  
485 485  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -560,8 +560,6 @@
560 560  )))
561 561  )))
562 562  
563 -
564 -
565 565  === 3.3.5 AT+MOD~=5, Single DI Counting + 2 x AVI + 1 x ACI ===
566 566  
567 567  **LT22222-L**: This mode the DI1 is used as a counting pin.
... ... @@ -602,12 +602,8 @@
602 602  
603 603  (((
604 604  Other AT Commands for counting are similar to [[MOD2 Counting Command>>||anchor="H3.3.2AT2BMOD3D22C28DoubleDICounting29"]].
605 -
606 -
607 607  )))
608 608  
609 -
610 -
611 611  === 3.3.6 AT+ADDMOD~=6. (Trigger Mode, Optional) ===
612 612  
613 613  (% style="color:#4f81bd" %)**This mode is an optional mode for trigger purpose. It can run together with other mode.**
... ... @@ -634,7 +634,6 @@
634 634  
635 635  AT+AVLIM=5000,0,0,0   (If AVI1 voltage lower than 5V , trigger uplink, 0 means ignore)
636 636  
637 -
638 638  (% style="color:#4f81bd" %)**Trigger base on current**:
639 639  
640 640  Format: AT+ACLIM=<AC1_LIMIT_LOW>,< AC1_LIMIT_HIGH>,<AC2_LIMIT_LOW>,< AC2_LIMIT_HIGH>
... ... @@ -643,7 +643,6 @@
643 643  
644 644  AT+ACLIM=10000,15000,0,0   (If ACI1 voltage lower than 10mA or higher than 15mA, trigger an uplink)
645 645  
646 -
647 647  (% style="color:#4f81bd" %)**Trigger base on DI status**:
648 648  
649 649  DI status trigger Flag.
... ... @@ -730,18 +730,12 @@
730 730  
731 731  When device got this command, it will send the MOD6 payload.
732 732  
733 -
734 -
735 735  === 3.3.7 Payload Decoder ===
736 736  
737 737  (((
738 738  **Decoder for TTN/loraserver/ChirpStack**: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/Payload_decoder/]]
739 -
740 -
741 741  )))
742 742  
743 -
744 -
745 745  == 3.4 ​Configure LT via AT or Downlink ==
746 746  
747 747  User can configure LT I/O Controller via AT Commands or LoRaWAN Downlink Commands
... ... @@ -750,18 +750,14 @@
750 750  There are two kinds of Commands:
751 751  )))
752 752  
753 -* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
699 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
754 754  
755 755  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for LT-22222-L.  User can see these commands below:
756 756  
757 -
758 -
759 759  === 3.4.1 Common Commands ===
760 760  
761 761  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.5.4, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
762 762  
763 -
764 -
765 765  === 3.4.2 Sensor related commands ===
766 766  
767 767  ==== 3.4.2.1 Set Transmit Interval ====
... ... @@ -784,8 +784,6 @@
784 784  **0x01 aa bb cc     ~/~/ Same as AT+TDC=0x(aa bb cc)**
785 785  )))
786 786  
787 -
788 -
789 789  ==== 3.4.2.2 Set Work Mode (AT+MOD) ====
790 790  
791 791  Set work mode.
... ... @@ -806,8 +806,6 @@
806 806  **0x0A aa     ~/~/ Same as AT+MOD=aa**
807 807  )))
808 808  
809 -
810 -
811 811  ==== 3.4.2.3 Poll an uplink ====
812 812  
813 813  * AT Command:
... ... @@ -823,11 +823,9 @@
823 823  
824 824  **Example**: 0x08FF, ask device to send an Uplink
825 825  
826 -
827 -
828 828  ==== 3.4.2.4 Enable Trigger Mode ====
829 829  
830 -Use of trigger mode, please check [[ADDMOD6>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
766 +Use of trigger mode, please check [[ADDMOD6>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
831 831  
832 832  * AT Command:
833 833  
... ... @@ -847,8 +847,6 @@
847 847  **0x0A 06 aa     ~/~/ Same as AT+ADDMOD6=aa,**
848 848  )))
849 849  
850 -
851 -
852 852  ==== 3.4.2.5 Poll trigger settings ====
853 853  
854 854  Poll trigger settings,
... ... @@ -864,8 +864,6 @@
864 864  **0xAB 06  ~/~/ Poll trigger settings, device will uplink trigger settings once receive this command**
865 865  )))
866 866  
867 -
868 -
869 869  ==== 3.4.2.6 Enable / Disable DI1/DI2/DI3 as trigger ====
870 870  
871 871  Enable Disable DI1/DI2/DI2 as trigger,
... ... @@ -888,7 +888,6 @@
888 888  **0xAA 02 aa bb  ~/~/ Same as AT+DTRI=aa,bb**
889 889  )))
890 890  
891 -
892 892  ==== 3.4.2.7 Trigger1 – Set DI1 or DI3 as trigger ====
893 893  
894 894  Set DI1 or DI3(for LT-33222-L) trigger.
... ... @@ -915,7 +915,6 @@
915 915  **0x09 01 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
916 916  )))
917 917  
918 -
919 919  ==== 3.4.2.8 Trigger2 – Set DI2 as trigger ====
920 920  
921 921  Set DI2 trigger.
... ... @@ -942,10 +942,9 @@
942 942  **0x09 02 aa bb cc ~/~/ same as AT+TRIG1=aa,0x(bb cc)**
943 943  )))
944 944  
945 -
946 946  ==== 3.4.2.9 Trigger – Set AC (current) as trigger ====
947 947  
948 -Set current trigger , base on AC port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
877 +Set current trigger , base on AC port. See [[trigger mode>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
949 949  
950 950  * AT Command:
951 951  
... ... @@ -958,19 +958,18 @@
958 958  
959 959  (% class="box infomessage" %)
960 960  (((
961 -**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
890 +**0x AA 01 aa bb cc dd ee ff gg hh ~/~/ same as AT+ACLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
962 962  )))
963 963  
964 -
965 965  ==== 3.4.2.10 Trigger – Set AV (voltage) as trigger ====
966 966  
967 -Set current trigger , base on AV port. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]
895 +Set current trigger , base on AV port. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]
968 968  
969 969  * AT Command:
970 970  
971 971  (% class="box infomessage" %)
972 972  (((
973 -**AT+AVLIM. See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]]**
901 +**AT+AVLIM. See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]]**
974 974  )))
975 975  
976 976  * Downlink Payload (prefix 0xAA 00 ):
... ... @@ -977,10 +977,9 @@
977 977  
978 978  (% class="box infomessage" %)
979 979  (((
980 -**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>||anchor="H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29"]] **
908 +**0x AA 00 aa bb cc dd ee ff gg hh ~/~/ same as AT+AVLIM See [[trigger mode>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.6AT2BADDMOD3D6.28TriggerMode2COptional29]] **
981 981  )))
982 982  
983 -
984 984  ==== 3.4.2.11 Trigger – Set minimum interval ====
985 985  
986 986  Set AV and AC trigger minimum interval, system won’t response to the second trigger within this set time after the first trigger.
... ... @@ -999,7 +999,6 @@
999 999  **0x AC aa bb ~/~/ same as AT+ATDC=0x(aa bb)   . Unit (min)**
1000 1000  )))
1001 1001  
1002 -
1003 1003  ==== 3.4.2.12 DO ~-~- Control Digital Output DO1/DO2/DO3 ====
1004 1004  
1005 1005  * AT Command:
... ... @@ -1174,13 +1174,13 @@
1174 1174  
1175 1175  ==== 3.4.2.16 Counting ~-~- Voltage threshold counting ====
1176 1176  
1177 -When voltage exceed the threshold, count. Feature see [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]
1103 +When voltage exceed the threshold, count. Feature see [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]
1178 1178  
1179 1179  * AT Command:
1180 1180  
1181 1181  (% class="box infomessage" %)
1182 1182  (((
1183 -**AT+VOLMAX    ~/~/ See [[MOD4>>||anchor="H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting"]]**
1109 +**AT+VOLMAX    ~/~/ See [[MOD4>>path:http://8.211.40.43:8080/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/#H3.3.4AT2BMOD3D42CSingleDICounting2B1xVoltageCounting]]**
1184 1184  )))
1185 1185  
1186 1186  * Downlink Payload (prefix 0xA5):
... ... @@ -1190,7 +1190,6 @@
1190 1190  **0xA5 aa bb cc   ~/~/ Same as AT+VOLMAX=(aa bb),cc**
1191 1191  )))
1192 1192  
1193 -
1194 1194  ==== 3.4.2.17 Counting ~-~- Pre-configure the Count Number ====
1195 1195  
1196 1196  * AT Command:
... ... @@ -1215,7 +1215,6 @@
1215 1215  **0x A8 aa bb cc dd ee     ~/~/ same as AT+SETCNT=aa,(bb cc dd ee)**
1216 1216  )))
1217 1217  
1218 -
1219 1219  ==== 3.4.2.18 Counting ~-~- Clear Counting ====
1220 1220  
1221 1221  Clear counting for counting mode
... ... @@ -1234,7 +1234,6 @@
1234 1234  **0x A6 01     ~/~/ clear all counting,**
1235 1235  )))
1236 1236  
1237 -
1238 1238  ==== 3.4.2.19 Counting ~-~- Change counting mode save time ====
1239 1239  
1240 1240  * AT Command:
... ... @@ -1253,8 +1253,6 @@
1253 1253  
1254 1254  (((
1255 1255  range: aa bb cc:0 to 16777215,  (unit:second)
1256 -
1257 -
1258 1258  )))
1259 1259  
1260 1260  == 3.5 Integrate with Mydevice ==
... ... @@ -1275,7 +1275,6 @@
1275 1275  
1276 1276  [[image:image-20220524094641-12.png||height="402" width="718"]]
1277 1277  
1278 -
1279 1279  **Step 3**: Create an account or log in Mydevices.
1280 1280  
1281 1281  **Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
... ... @@ -1284,7 +1284,6 @@
1284 1284  
1285 1285  [[image:1653356838789-523.png||height="337" width="740"]]
1286 1286  
1287 -
1288 1288  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1289 1289  
1290 1290  [[image:image-20220524094909-1.png||height="335" width="729"]]
... ... @@ -1297,7 +1297,6 @@
1297 1297  
1298 1298  [[image:image-20220524094909-5.png||height="341" width="734"]]
1299 1299  
1300 -
1301 1301  == 3.6 Interface Detail ==
1302 1302  
1303 1303  === 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
... ... @@ -1306,7 +1306,6 @@
1306 1306  
1307 1307  [[image:1653356991268-289.png]]
1308 1308  
1309 -
1310 1310  === 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1311 1311  
1312 1312  (((
... ... @@ -1322,105 +1322,51 @@
1322 1322  [[image:1653357170703-587.png]]
1323 1323  
1324 1324  (((
1325 -(((
1326 1326  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1327 1327  )))
1328 -)))
1329 1329  
1330 -(((
1331 -
1332 -)))
1333 1333  
1334 -(((
1335 1335  **Example1**: Connect to a Low active sensor.
1336 -)))
1337 1337  
1338 -(((
1339 1339  This type of sensor will output a low signal GND when active.
1340 -)))
1341 1341  
1342 -* (((
1343 -Connect sensor’s output to DI1-
1344 -)))
1345 -* (((
1346 -Connect sensor’s VCC to DI1+.
1347 -)))
1250 +* Connect sensor’s output to DI1-
1251 +* Connect sensor’s VCC to DI1+.
1348 1348  
1349 -(((
1350 -So when sensor active, the current between NEC2501 pin1 and pin2 is：
1351 -)))
1253 +So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1352 1352  
1353 -(((
1354 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1355 -)))
1255 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]] = DI1+ / 1K.**
1356 1356  
1357 -(((
1358 -If DI1+ = 12v, the [[image:1653968155772-850.png||height="23" width="19"]]= 12mA , So the LT-22222-L will be able to detect this active signal.
1359 -)))
1257 +If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1360 1360  
1361 -(((
1362 -
1363 -)))
1364 1364  
1365 -(((
1366 1366  **Example2**: Connect to a High active sensor.
1367 -)))
1368 1368  
1369 -(((
1370 1370  This type of sensor will output a high signal (example 24v) when active.
1371 -)))
1372 1372  
1373 -* (((
1374 -Connect sensor’s output to DI1+
1375 -)))
1376 -* (((
1377 -Connect sensor’s GND DI1-.
1378 -)))
1264 +* Connect sensor’s output to DI1+
1265 +* Connect sensor’s GND DI1-.
1379 1379  
1380 -(((
1381 1381  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1382 -)))
1383 1383  
1384 -(((
1385 -[[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 1K.**
1386 -)))
1269 +[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1387 1387  
1388 -(((
1389 -If **DI1+ = 24v**, the[[image:1653968155772-850.png||height="23" width="19"]] 24mA , So the LT-22222-L will be able to detect this high active signal.
1390 -)))
1271 +If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1391 1391  
1392 -(((
1393 -
1394 -)))
1395 1395  
1396 -(((
1397 1397  **Example3**: Connect to a 220v high active sensor.
1398 -)))
1399 1399  
1400 -(((
1401 1401  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1402 -)))
1403 1403  
1404 -* (((
1405 -Connect sensor’s output to DI1+ with a serial 50K resistor
1406 -)))
1407 -* (((
1408 -Connect sensor’s GND DI1-.
1409 -)))
1278 +* Connect sensor’s output to DI1+ with a serial 50K resistor
1279 +* Connect sensor’s GND DI1-.
1410 1410  
1411 -(((
1412 1412  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1413 -)))
1414 1414  
1415 -(((
1416 - [[image:1653968155772-850.png||height="23" width="19"]]**= DI1+ / 51K.**
1417 -)))
1283 + [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]][[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png?rev=1.1||alt="image-20220524095628-8.png"]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1418 1418  
1419 -(((
1420 -If sensor output is 220v, the [[image:1653968155772-850.png||height="23" width="19"]](% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1421 -)))
1285 +If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %)[[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1422 1422  
1423 -
1424 1424  === 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1425 1425  
1426 1426  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
... ... @@ -1427,7 +1427,6 @@
1427 1427  
1428 1428  [[image:1653357531600-905.png]]
1429 1429  
1430 -
1431 1431  === 3.6.4 Analog Input Interface ===
1432 1432  
1433 1433  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
... ... @@ -1455,7 +1455,6 @@
1455 1455  
1456 1456  [[image:1653357648330-671.png||height="155" width="733"]]
1457 1457  
1458 -
1459 1459  === 3.6.5 Relay Output ===
1460 1460  
1461 1461  (((
... ... @@ -1466,12 +1466,10 @@
1466 1466  
1467 1467  [[image:image-20220524100215-10.png||height="382" width="723"]]
1468 1468  
1469 -
1470 1470  == 3.7 LEDs Indicators ==
1471 1471  
1472 1472  [[image:image-20220524100748-11.png]]
1473 1473  
1474 -
1475 1475  = 4. Use AT Command =
1476 1476  
1477 1477  == 4.1 Access AT Command ==
... ... @@ -1672,8 +1672,6 @@
1672 1672  
1673 1673  (((
1674 1674  AT+CFG: Print all settings
1675 -
1676 -
1677 1677  )))
1678 1678  
1679 1679  == 4.2 Common AT Command Sequence ==
... ... @@ -1715,8 +1715,6 @@
1715 1715  
1716 1716  (((
1717 1717  (% style="background-color:#dcdcdc" %)ATZ
1718 -
1719 -
1720 1720  )))
1721 1721  
1722 1722  === 4.2.2 Single-channel ABP mode (Use with LG01/LG02) ===
... ... @@ -1798,7 +1798,6 @@
1798 1798  (% style="background-color:#dcdcdc" %)AT+CLASS=A
1799 1799  ATZ
1800 1800  
1801 -
1802 1802  = 5. FAQ =
1803 1803  
1804 1804  == 5.1 How to upgrade the image? ==
... ... @@ -1829,7 +1829,6 @@
1829 1829  
1830 1830  [[image:1653360054704-518.png||height="186" width="745"]]
1831 1831  
1832 -
1833 1833  (((
1834 1834  (((
1835 1835  == 5.2 How to change the LoRa Frequency Bands/Region? ==
... ... @@ -1838,8 +1838,6 @@
1838 1838  
1839 1839  (((
1840 1840  User can follow the introduction for [[how to upgrade image>>||anchor="H5.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1841 -
1842 -
1843 1843  )))
1844 1844  
1845 1845  (((
... ... @@ -1893,18 +1893,10 @@
1893 1893  
1894 1894  [[image:1653360498588-932.png||height="485" width="726"]]
1895 1895  
1896 -
1897 1897  == 5.4 Can I see counting event in Serial? ==
1898 1898  
1899 1899  (((
1900 1900  User can run AT+DEBUG command to see the counting event in serial. If firmware too old and doesn’t support AT+DEBUG. User can update to latest firmware first.
1901 -
1902 -
1903 -== 5.5 Can i use point to point communication for LT-22222-L? ==
1904 -
1905 -Yes, please refer [[Point to Point Communication>>doc:Main. Point to Point Communication of LT-22222-L.WebHome]]
1906 -
1907 -
1908 1908  )))
1909 1909  
1910 1910  (((
... ... @@ -1918,8 +1918,10 @@
1918 1918  )))
1919 1919  
1920 1920  (((
1921 -Please see this link for how to debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H5.1Howitwork"]]
1764 +Please see this link for how to debug:
1922 1922  
1766 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H5.1Howitwork]]
1767 +
1923 1923  
1924 1924  )))
1925 1925  
... ... @@ -1928,7 +1928,9 @@
1928 1928  )))
1929 1929  
1930 1930  (((
1931 -See this link for trouble shooting: [[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
1776 +See this link for trouble shooting:
1777 +
1778 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/>>http://wiki1.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
1932 1932  )))
1933 1933  
1934 1934  (((
... ... @@ -1940,7 +1940,9 @@
1940 1940  )))
1941 1941  
1942 1942  (((
1943 -It might be about the channels mapping. [[Please see this link for detail>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1790 +It might be about the channels mapping. Please see this link for detail:
1791 +
1792 +[[http:~~/~~/wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband>>http://wiki1.dragino.com/xwiki/bin/view/Main/LoRaWAN%20Communication%20Debug/#H2.NoticeofUS9152FCN4702FAU915Frequencyband]]
1944 1944  )))
1945 1945  
1946 1946  (((
... ... @@ -2014,8 +2014,6 @@
2014 2014  (((
2015 2015  * (((
2016 2016  (% style="color:#4f81bd" %)**CN779**(%%): LT with frequency bands CN779
2017 -
2018 -
2019 2019  )))
2020 2020  
2021 2021  = 8. Packing Info =
... ... @@ -2048,8 +2048,6 @@
2048 2048  * Device Weight: 105g
2049 2049  * Package Size / pcs : 14.5 x 8 x 5 cm
2050 2050  * Weight / pcs : 170g
2051 -
2052 -
2053 2053  )))
2054 2054  )))
2055 2055  
... ... @@ -2071,8 +2071,6 @@
2071 2071  (((
2072 2072  (((
2073 2073   [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
2074 -
2075 -
2076 2076  )))
2077 2077  
2078 2078  (((
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